1166606066611 has 4 divisors (see below), whose sum is σ = 1167083990424. Its totient is φ = 1166128142800.

The previous prime is 1166606066609. The next prime is 1166606066621.

1166606066611 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1166606066611 - 2¹ = 1166606066609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166606066621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238958245 + ... + 238963126.

It is an arithmetic number, because the mean of its divisors is an integer number (291770997606).

Almost surely, 2^{1166606066611} is an apocalyptic number.

1166606066611 is a deficient number, since it is larger than the sum of its proper divisors (477923813).

1166606066611 is an equidigital number, since it uses as much as digits as its factorization.

1166606066611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477923812.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 1166606066611 in words is "one trillion, one hundred sixty-six billion, six hundred six million, sixty-six thousand, six hundred eleven".